Hya,
i have an ESP32-DEV-KIT-DevKitC-v4 and have some questions regarding voltages to be used.
On this board, there is the VIN, 3V3 and GND pins.
By feeding VIN with 5V, the 3V3 pin shows 4V2. is this correct?
I'm feeding VIN with 5V and all other breakout boards, 3V3 are feeded by the 3V3 pin, which outputs 4V2
Is there any problems having this or shall i get a step down from 5V to 3V3 and feed the breakout boards with the 3V3, even when the ESP32 GPIOs shows 4V2?
Thx in advance for advises.
I think you need to provide links to all the hardware you intend to use.
How are you measuring the voltages?
What do you measure on 3V3 if you power the board from the USB port?
Thx for answer.
breakout boards connected: 2 x INA226, 1 x ADS1115, 1 x BME280, 1 x LTR390, 1 x TLS2561.
Measuaring with multimer, ground and voltage pin (pin 1 for 3V3 and pin 19 for 5V) .
By feeding thru USB port, pin 1 shows 3V7 and pin 19 shows 4V5
By feeding 5V0 thru pin 19, pin 1 shows 4V2.
This is the board
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